G8l: timed IPC RECV-cancel writer-authority audit

pub const S285_WRITER_BOUNDARY_SITES: usize = 1;
pub const S285_WRITER_AUTHORITY_SITES: usize = 0;
pub const S285_DIRECT_SCHEDULER_ACCESS_SITES: usize = S284_DIRECT_SCHEDULER_ACCESS_SITES;
pub const S285_IMMUTABLE_READ_SITES: usize = S284_IMMUTABLE_READ_SITES;
pub const S285_WHOLE_SCHEDULER_GUARDED_SITES: usize = S284_WHOLE_SCHEDULER_GUARDED_SITES;
pub const S285_WHOLE_SCHEDULER_UNROUTED_SITES: usize = S284_WHOLE_SCHEDULER_UNROUTED_SITES;
pub const S285_OPEN_WRITER_SITES: usize = S284_OPEN_WRITER_SITES;

#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum G8lS285SchedulerWriterAuthorityAuditOutcome {
    Idle,
    AwaitingWriterAuthority {
        request_id: u64,
        guarded_sites: usize,
        writer_sites: usize,
    },
}

#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum G8lS285SchedulerWriterAuthorityAuditError {
    S284(G8lS284SchedulerWriterAuthorityAuditError),
    S245(G8lS245ExclusionAdmissionRequestError),
    PriorCoverageDrift {
        guarded_sites: usize,
        unrouted_sites: usize,
    },
}

/// Revalidate the prior fail-closed authority boundary without taking
/// admission or constructing a production exclusive wrapper.
pub fn preflight_s285_scheduler_writer_authority(
    caller_cpu: usize,
    request: Option<G8lS245WholeSchedulerExclusionAdmissionRequestView>,
) -> Result<G8lS285SchedulerWriterAuthorityAuditOutcome, G8lS285SchedulerWriterAuthorityAuditError>
{
    match preflight_s284_scheduler_writer_authority(caller_cpu, request)
        .map_err(G8lS285SchedulerWriterAuthorityAuditError::S284)?
    {
        G8lS284SchedulerWriterAuthorityAuditOutcome::Idle => {
            Ok(G8lS285SchedulerWriterAuthorityAuditOutcome::Idle)
        }
        G8lS284SchedulerWriterAuthorityAuditOutcome::AwaitingWriterAuthority {
            request_id,
            guarded_sites,
            writer_sites,
        } if guarded_sites == S285_WHOLE_SCHEDULER_GUARDED_SITES
            && writer_sites == S285_OPEN_WRITER_SITES =>
        {
            Ok(
                G8lS285SchedulerWriterAuthorityAuditOutcome::AwaitingWriterAuthority {
                    request_id,
                    guarded_sites,
                    writer_sites,
                },
            )
        }
        G8lS284SchedulerWriterAuthorityAuditOutcome::AwaitingWriterAuthority {
            guarded_sites,
            writer_sites: _,
            ..
        } => Err(
            G8lS285SchedulerWriterAuthorityAuditError::PriorCoverageDrift {
                guarded_sites,
                unrouted_sites: S285_DIRECT_SCHEDULER_ACCESS_SITES - guarded_sites,
            },
        ),
    }
}

#[test]
fn s285_keeps_timed_ipc_receive_cancel_writer_open_until_exclusive_authority_exists() {
    assert_eq!(S285_WRITER_BOUNDARY_SITES, 1);
    assert_eq!(S285_WRITER_AUTHORITY_SITES, 0);
    assert_eq!(S285_DIRECT_SCHEDULER_ACCESS_SITES, 113);
    assert_eq!(S285_IMMUTABLE_READ_SITES, 44);
    assert_eq!(S285_WHOLE_SCHEDULER_GUARDED_SITES, 44);
    assert_eq!(S285_WHOLE_SCHEDULER_UNROUTED_SITES, 69);
    assert_eq!(S285_OPEN_WRITER_SITES, 69);
}

  {
    id: "g8l-s285-timed-ipc-receive-cancel-writer-authority-audit-partial",
    date: "2026-08-26",
    sequence: 285,
    status: "passed",
    umbrella_status: "partial",
    title: "G8l: timed IPC RECV-cancel writer-authority audit",
    summary:
      "S285 focused 15/15 PASS ile cancel_timed_ipc_receive_under_transaction(expected) sınırındaki explicit scheduler writer erişimini kaynakta doğrular. Writer authority yalnız model gate'inin exclusive lease'iyle mümkündür; reader lease'i writer'ı açmaz. Production inventory 113 direct / 44 immutable guarded / 69 open writer'dır; production exclusive wrapper, provider authority, whole-scheduler exclusion ve scheduler mutation üretilmez.",
    evidence: [
      "S285 focused kaynak/model kapısı iki bağımsız koşuda 15/15 PASS verdi: 130 B / SHA-256 0447f2fe9dc6fdf30815a6962cf23d978425e51bef2acde1efb27e5da13a78b3.",
      "cancel_timed_ipc_receive_under_transaction içindeki tek addr_of_mut!(crate::task::scheduler::SCHEDULER) writer boundary'si ve tek wake_timed_out_ipc_receiver_exact çağrısı kaynakta görünür; caller outer IPC transaction/deadline lock'larını zaten tutarken exact RECV wait, endpoint/generation, waiting receiver, CapabilityRights::ENDPOINT_RECV authority, blocked-task ve wake-capacity preflight; exact receiver cancel; timeout wake ve CNode revoke sırası doğrulanır.",
      "Model gate reader membership exclusive writer authority'yi ExclusiveBusy ile bloklar; reader bırakıldıktan sonra non-zero token'lı exclusive lease alınır. Bu host/model evidence'tır.",
      "S284 authority preflight yeniden doğrulanır; pending S245 request korunur ve sonuç AwaitingWriterAuthority { guarded_sites: 44, writer_sites: 69 } olarak döner.",
      "Dört AArch64 profil derlemesi iki koşuda byte-equal exit 0 verdi: QEMU 110646 B / 1a5713e7, RPi4 149371 B / 6f840d61, RPi5 384778 B / d5b2cb04 ve RPi5+SMP 384720 B / 282a4764. Warning header'ları sırasıyla 291, 389, 770 ve 770'tir; zero-warning iddiası değildir.",
      "Birleşik board-rpi5,board-qemu özellikleri iki koşuda beklenen exit 101, 18590 B / acff1d47, 17 error ve 22 warning header ile fail-closed kaldı; S285 writer boundary'si iki board profilinin birlikte etkinleşmesini açmaz.",
      "S238–S285 dependency matrisi iki koşuda 49 grup / 659/659 PASS; ham loglar 6292 B / 459910f3 ve b698cb9c, süre-normalize özet 6390 B byte-equal / c89a9f78260973f65f5c77e9cc35256daf1e807537f068653510846c333640f7. Bu production writer-authority invocation kanıtı değildir.",
      "Ortak make verify-qemu iki koşuda PASS verdi: 116222 B / 6275c694 ve 116139 B / 464b6c79; W^X 31/31, S271 GRAPH_ABSENT=YES, RuntimePmm baseline, EL0 x4096, IPC 20/20, tek beklenen S142 fatal containment ve SEC5 korunur. Bu ortak smoke S285 production writer invocation kanıtı değildir.",
      "Exact yedi tarihsel G8h assertion adlarıyla dışlandığında workspace iki koşuda 247 sonuç grubu / 2434 PASS / 7 filtered verdi: ham loglar 59568 B, süre-normalize 23840 B özet byte-equal / SHA-256 123bbd8aaed30ac295954399b4c6e0f4273ba95d7e92da35f5f62ffc09e31254. Filtresiz koşu exit 101, 54790 B / 689bc013 ile frozen S96 exceptions.S identity kapısında RED kaldı; full-workspace GREEN iddia edilmez.",
      "S285 production exclusive wrapper, provider authority, whole-scheduler exclusion, QEMU runtime fixture veya scheduler mutation iddiası eklemez; physical/device operations=0 ve RUNBOOK_EXECUTED_IN_S285=NO.",
    ],
    commands: [
      "cargo test --quiet -p aselsan_microkernel_simulation --test g8l_target_dispatch_scheduler_owner_scheduler_mutation_production_migration_lifecycle_s285_timed_ipc_receive_cancel_writer_authority_audit -- --test-threads=1",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-qemu",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi4",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi5",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi5,smp",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi5,board-qemu",
      "make verify-qemu",
    ],
    terminalSessions: [
      {
        id: "g8l-s285-timed-ipc-receive-cancel-writer-authority-audit",
        title: "G8l S285 timed IPC RECV-cancel writer-authority audit",
        commandLines: [
          "cargo test --quiet -p aselsan_microkernel_simulation --test g8l_target_dispatch_scheduler_owner_scheduler_mutation_production_migration_lifecycle_s285_timed_ipc_receive_cancel_writer_authority_audit -- --test-threads=1",
        ],
        outputLines: [
          "test result: ok; S285 focused 1 group / 15 passed; 0 failed",
          "repeat-stable quiet output: 130 B / 0447f2fe9dc6fdf30815a6962cf23d978425e51bef2acde1efb27e5da13a78b3",
          "timed IPC RECV-cancel writer authority remains model-only: reader blocks exclusive lease; 69 production writer sites remain open",
          "dependency: S238–S285 · 49 groups · 659/659 PASS; workspace: 247 groups · 2434 PASS · 7 historical filtered",
        ],
        exitCode: 0,
        outputMode: "selected",
      },
    ],
    terminalSessionsNote:
      "S285 kaynak/model fail-closed authority boundary'sidir; production writer guard, QEMU fixture mutation ve fiziksel/device execution claim edilmez.",
    limitations: [
      "S285 yalnız cancel_timed_ipc_receive_under_transaction writer orchestration sınırını audit eder; 69 production writer site açık kalır.",
      "Exclusive lease yalnız host/model gate'inde test edilir; production exclusive wrapper, provider authority ve whole-scheduler exclusion açık kalır.",
      "S238–S285 dependency matrisi exact 49 grup / 659/659 PASS'tir; bu production writer authority invocation kanıtı değildir.",
      "Filtresiz workspace frozen S96 identity kapısında RED'dir; workspace umbrella GREEN iddia edilmez.",
      "Supported-profile runtime invocation, Generic SMP ve fiziksel RPi kabulü açık kalır; S285 physical/device operations=0 ve RUNBOOK_EXECUTED_IN_S285=NO.",
    ],
  },